Weld Preparation

Welding is necessary when you require two or more pieces of metal or plastic to be joined together, fusing them together through either a fabrication or sculptural process. In order to achieve the strongest weld, it is necessary to prepare the surface. At Fereday Cylinders, we are able to cut weld preparations onto plates up to the size of 40mm, through the application of our TRUMPF nibbling machines. Read on to find out more details about weld preparation.

What type of Welding Requires Preparation?

All types of welding require some level of preparation, for all kinds of joints. Butt welds generally need comparatively less preparation, but for best results, it is still recommended.

What is Weld Preparation?

The main aspect of weld preparation is the process of removing material along the edges. It enables the weld to replace the removed material, to make a bridge between the different joining parts. It may consist of a root opening on one or both sides, a bevel angel cut, a V-angle cut, or a combination of these. Depending on the type of weld, a specific type of edge preparation is necessary. For example, root opening preparation has many more applications it is suitable for compared with angle cut preparation.

How does Weld Preparation Work?


For butt joints, the most common technique for weld preparation includes oxyacetylene cutting, machining, chipping, grinding, and air carbon-arc cutting or gouging. For each of these methods, there are pros and cons to their application. Oxyacetylene cutting is the most popular technique used with steel materials due to the speed, the affordability, and adaptability. For mass production of parts, machining is best as it has advantages when it comes to reproducibility. This is also true for weld preparation of J or U joints as a high level of precision is needed. In terms of other methods, chipping is best for parts produced by casting, grinding is best for use on small sections, and air carbon arc cutting is best for use with materials such as stainless steel, cast iron, or carbon steel.

What do we do at Fereday Cylinders?


Our use of TRUMPF nibbling machines is able to process sheets between 0.02 inches or 0.4 inches thick, which is perfect for interior cut-outs and notching work with burr-free cuts. These machines work without feed force, distortion, emissions, or sparks, which makes it ideal for plumbing, coil cutting, and assembly and dismantling or containers and tanks. When operating the machinery, we always have a clear view of the work as the chips fall downwards. The hollow round punch offers 360° rotation for the best manoeuvrability, and the rectangular punch offers great flexibility too. It can be used for cuts across edges, weld seams, and doubled sheets.

Contact Us

For more information about weld preparation, or any of our other services, please complete our web contact form, or email us at sales@feredaycylinder.co.uk. Based in the West Midlands, you can also reach us directly by calling us on 01384 213 444. We will be happy to answer any questions you may have for us.


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